Pneumatic conveyer for cotton and similar materials



March 9 1926. 1,575,642 J. l.. RUsHToN PNEUMATIC CONVEYER FOR COTTON AND SIMILAR MATERIALS Filed Augusl 5, 1924 3 Sheets-Sheet l ATTORNEY March 9 1926.

1,575,642 J. L. RUSHTON PNEUMATIC coNvEYER FOR co'r'rou AND SIMILAR MATERIALS' Filed August 5, 1924 3 SheetsSheet 2 Q mi .i w

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'A T T O R N EY March 9 1926.

J. L. RUSHTON PNEUMATIC CONVEYER FOR COTTON AND SI-MILAR MATERIALSr v 3 Sheets-Sheet 5 Filed August 5, 1924 I l I I l I l lllllll.

1 l I l l l l lllll 1 N v E N T 0R: Jar-nes 1m/zr KUS/'fof' ATTO@mawv Patented Mar. 9, 1926.

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l JAMES LEVER RUSIITON, F BOLTON, ENGLAND.

PNEUMATIC CONVEYER Eon Common AND SIMILAR MATERIALS.

Application filed August 5,1924. Serial No.' 730,1-67.

l To all whom it may concern:

Be it known that I, JAMES LEVER RUSH- 'roN, a subject of the King of Great Britain, residing at Kay StreetI l/Vorks, Bolton, in the county of Lancaster, England, have invented new and useful Improvements in Pneumatic Conveyers for Cotton and Similar Materials, of which the following is a specification.

The invention relates to improvements 1n or relating to pneumatic conveyers for cotton and similar materials wherein a series'of delivery boxes are employed and has particular reference to the last deliveryy box of the series in which it has been found in practice that the large amount of dust and like refuse which is drawn through the revolving cage into the dust receptacle has a tendency to cause said revolving cage and other moving parts to become clogged and consequently inefficient in action.

The object of the present invention lis to construct the last 4delivery box of a series in such manner that however great the amount of dust extracted from the'cotton or the like, it will be efficiently conducted away into its receptacle, so that the cage will not become clogged.

I-Iithertothe last delivery box has been constructed similarly to the others in the series being arranged in such manner that the dust out of the cotton is ldrawn through the periphery of a revolving cage and then through the pipe or tube, but for the purpose of this invention the rearmost portion of the revolving cage is furnished with a bai-lie plate or damper, the arrangement being such that the draught is stopped and dust is prevented from being ldrawn out through the rearmost side of the cage at the rear of the box.

In order to carry away the dust or dirt a tube or chamber, is provided at each side of the delivery box communicating with the same and said tubes or chambers communicate with one another at a point to the rear of the delivery box that is to say they merge into one tube which leads the dust away to the dust chamber or receptacle the dust being 'drawn through the device by the usual fan.

Thus the dirt instead of being carried through the periphery of the revolving cage is passed around and out at the ends thereof so that the parts cannot become clogged.

' And in order that the said invention may be more clearly understood and readily carried into effect I will now proceed aided by the accompanying. drawings more fully to describe the same.

yDesmfvlptem of the drawings.

Figure l is a plan of the last delivery box of alseries constructed according to the present invention.

' Figure 2 is' a side elevation thereof, and

Figure 3.is an end elevation thereof. Referring to said drawings l represents the main conveyerl tubeto which is connected the front of the delivery box 2 having a revolving cage 3 suitably mounted therein.

The cotton is driven from the tube l through the entrance 2a ofthe box until it is carried by a guide roller 3a into contact with the revolving cage 3.

t a stripping roller mounted upon a shaft adapted to revolve in a reverse ldirection to the revolving cage 3v in such manner as to strip off the cotton from said cage 3 and to eject the same through the swing delivery door 6 at the times desired.

A baiiie plate or damper 7 is mounted at the rearmost side of the revolving cage 3 in close proximity to the periphery thereof,

and supported by the arms 8 which are mounted in a central bearing or the like "9 carried by the shaft l()V upon which the re volving cage 3 is mounted, the arrangement being such that the Idraught of air through the cage 3 is stopped by said baffle plate or damper 7 thereby preventing dust from being drawn through the rearmost side of the said cage 3.

. A suitably mounted clearer roller 11 is provided, adapted to extend through the cage 3 and to press upon the inner surface thereof at or about the foremost end of the damper 7, for the purpose of clearing cotton and the like from the inner surface of said cage 3.

In order to carry away the dust or dirt a tube or chamber l2 is provided at each side of the delivery box 2 communicating with the same around the ends of the revolving cage 3, and said tubes or chambers l2 communicate with one another by. means of the tubes l2 at a point 13 to the rear of the delivery box 2 1n such manner as to form a single tube 14 by which the dust or dirt is conveyed to the dust chamber or receptacle by means of fthe usual fan.

Hand holes with detachable covers u@ are provided in the walls of the chambers l2 so that access may be had tothe interior thereof and to the revolving cage 3 for cleaning and other purposes.

By these means the dirt instead of being carried through the revolving cage 3 lis passed around the ends thereof, so that ythe parts cannot become clogged.

It will be understood that .the details of construction may be modiiied without departing vfrom the principle of the invention.

That I claim vas my invention Aand desire to secure by Letters Patent is.:-

1. A pneumatic conveyer for cotton and similar materials having -a delivery box, a supply in-let in said delivery box through which Aair .and material to be treated Yare drawn, a lixed shaft mounted transversely of said delivery box, a perforated cylinder rotatably .mounted on vsaid shaft, a damper lying immediately within said cylinder wall, and having Van opening'at the front to allow the passage of air into said cylinder-,aguide rollertransversely mounted in said delivery box adapted to vpropel the incoming material into contact with said cylinder, .a stripping roller below said .guide roller rotated oppositely to said cylinder, pivoted doors behind saidstripping roller, means ffor maintaining said doors .in contact with :said stripping` roller and adapted Ato allow the `ejection of the stripped material from time to time,

chambers in said delivery box embracing the ends of said cylinder, air trunks connected to said chambers and to an air exhauster.

2. A `pneumatic conveyer for cotton and similar materials having a delivery box, a supply inlet in said delivery box, through which air and material to be treated are drawn, a fixed shaft mounted transversely ot `said delivery box, a perforated cylinder rotatably mounted on said shaft, a damper iXed upon said shaft and within said cylin der, a guide roller transversely mounted in said delivery box adapted :to rotate in contact with said cylinder, and to press the incoming material into contact with said cylinder, a stripping roller below said guide roller rotated voppositely to said cylinder, a pivoted Ydoor behind said stripping roller, means t'or operating said door to a'llow the ejection of the stripped material from `time to time, chambers in said delivery boX embracing the ends ot said cylinder, air trunks connected to said chambers and to an air eXhauster, a clearer roller mounted within said cylinder at the front end of said damper, said clearer roller being in fric tional contact with the inside Jface of said cylinder, and rotated 'by said 'rictional contact to remove adhering -particles therefrom, hand ho'les Vwith detachable covers, in the walls o'i said chambers adjacent the ends of said cylinder.

In testimony whereof I have signed my name to 'this fspe'ci'iication.

JAMES vLEVER RUSHTGN. 

